DataRep Revision

If a computer understands only 1s and 0s, what happens when the 'M' key is pressed on the keyboard?

• The computer shuts down

• The letter 'M' appears on the screen as it is

• The letter 'M' is converted into a binary code

• Nothing happens

What does each character on a keyboard have in terms of binary representation?

• A) A unique color code

• B) A unique binary value

• C) A unique sound frequency

• D) A unique numerical value

Do uppercase letters have the same binary values as lowercase letters?

• A) Yes, they are the same

• B) No, they have different binary values

• C) Yes, but only for vowels

• D) No, they have the same binary values but different fonts

What is true about punctuation symbols in terms of binary representation?

• A) They share binary values with numbers

• B) They do not have binary values

• C) They have their own unique binary values

• D) They are represented by the binary values of letters

What is a character set in the context of computer systems?

• A method to encode binary data

• A collection of characters used to represent text

• A type of computer hardware

• A programming language feature

Which of the following are examples of character sets?

• HTML and CSS

• HTTP and HTTPS

• Unicode and ASCII

• JPEG and PNG

What does a character set include?

• Only letters and numbers

• Only symbols

• Letters, numbers, and symbols

• Only letters

What does ASCII stand for?

• American Standard Code for Information Interchange

• American Simple Code for Information Interchange

• Automated Standard Code for Information Interchange

• American Standard Code for Integrated Interchange

In which decade was ASCII originally developed?

• 1950s

• 1960s

• 1970s

• 1980s

How many characters does ASCII encode into 7-bit binary codes?

• 64

• 128

• 256

• 512